Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2MSJ callsign genealogy
Currently held by Sweet Jr, Mark M
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by N2MSJ's current licensee, walking backwards.
- Sweet Jr, Mark MINgranted 2021-09-13cancelled 2021-10-01
Successor callsigns
Callsigns held now by people who previously held N2MSJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N2MSJ, oldest first.
- WATROUS, HARRY C NY2003-05-02 → cancelled 2015-05-12
- Sweet Jr, Mark M IN2021-10-01 active